Analysis on Parameters of WLF Equation for Viscoelastic Damping Materials

Wang, Bing; Chang, Guanjun; Lin, Xiao; Guo, Wantao

doi:10.2991/mmme-16.2016.115

Cited by 2 publications

(2 citation statements)

References 3 publications

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“…Rubber material was a complex mixture of polymer and various additives, which had the characteristics of viscous liquid and elastic solid at the same time [1][2] . Tensile deformation, bend deformation, or shear deformation occurred inside the polymer when vibration forces acted on this viscoelastic polymer.…”

Section: Introductionmentioning

confidence: 99%

Effect of Compound Curing System on Properties of NBR/CM Blends

Han,

Zhang,

Zhang

et al. 2024

J. Phys.: Conf. Ser.

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The effects of conventional vulcanization (CV), semi-efficient vulcanization (SEV), efficient vulcanization (EV), and equilibrium cure (EC) on the properties of nitrile rubber (NBR)/ chlorinated polyethylene (CM) blends were studied. The results showed that the SEV system had a faster vulcanization rate, larger torque, and larger vulcanization temperature coefficient, and the EC system had reversion resistance and a longer vulcanizing period. The modulus of the SEV system, the tensile strength of the CV system, and the elongation at the break of the EC system were high. The SEV system had good seawater and oil resistance; SEV > EV > CV >EC appeared in G’ and G”. The tanδ of the SEV system was larger than that of the EC system, but the tanδ of CV and EV system was close.

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Section: Introductionmentioning

confidence: 99%

Effect of Compound Curing System on Properties of NBR/CM Blends

Han,

Zhang,

Zhang

et al. 2024

J. Phys.: Conf. Ser.

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“…Viscoelastic polymers such as the rubbery polymer are widely utilized for acoustic and vibration damping in national defense and military fields because of their much higher molecular friction mainly based on glass transition than other damping materials as metals and ceramics [1,2]. However, as a measure of the dissipation of vibration energy, the loss tangent tan δ of the vicoelastic damping materials (VDM) is strongly dependant on the ambient temperature and vibration frequency [2][3][4]. What's more, the damping properties of the VDM will intensely decay with the increasing temperature and even disappear once the temperature above 100°C due to the low glass transition temperature (T g ) generally below zero and poor heat-resistance.…”

Section: Introductionmentioning

confidence: 99%

Viscoelastic Vibration Damping Materials for Application in a Temperature Range above 150°C

Wang

Lin

Liang

2017

KEM

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We demonstrate a new type of viscoelastic vibration damping material with high damping performances (tan δ=E′/E′′ ≥0.3 where E′ and E′′ are the storage and loss Young’s moduli, respectively) at a high temperature range between 200°C and 250°C utilizing a special polymer resin of higher glass transition temperature corresponding to the application temperature range and larger pendant groups offering higher efficiency of the energy dissipation. In addition, the damping property of the bulk material reinforced with glass fiber will be significantly improved, where the peak tan δ value can reach 0.7. In this paper, we put the emphasis on the preparation process and properties characterization of this new type material, and try to provide a new method to fabricate a viscoelastic damping material (VDM) usable for applications in the field of high temperature vibration reduction, in contrast to the conventional ones whose damping properties will dramatically decay once the ambient temperature is above 100°C.

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Analysis on Parameters of WLF Equation for Viscoelastic Damping Materials

Cited by 2 publications

References 3 publications

Effect of Compound Curing System on Properties of NBR/CM Blends

Effect of Compound Curing System on Properties of NBR/CM Blends

Viscoelastic Vibration Damping Materials for Application in a Temperature Range above 150°C

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